<template>
    <!-- // 右侧图表1 -->
    <div class="RingChart">
        <div ref="chartRef" class="chart"></div>
    </div>
</template>
<script lang="ts" setup>
import { ref, computed, defineComponent, onMounted, watch } from 'vue'
import $util from '../../util/util'
import * as echarts from 'echarts';
import 'echarts-gl';
interface PropsType {
    chartData?: any
}
const props = withDefaults(defineProps<PropsType>(), {
    chartData: []
})
const emit = defineEmits<EmitType>()
interface EmitType { }
const chartRef = ref(null);
let myChart: any = null;
let seriesData = ref<any>([])
const initChart = (data: any) => {
    if (data.length == 0) return;
    if (chartRef.value) {
        myChart = echarts.init(chartRef.value);
    }
    const getPie3D = (pieData: any, internalDiameterRatio: any) => {
        //internalDiameterRatio:透明的空心占比
        let series: any = [];
        let sumValue = 0;
        let startValue = 0;
        let endValue = 0;
        let k = 1 - internalDiameterRatio;
        pieData.sort((a: any, b: any) => {
            return b.value - a.value;
        });
        // 为每一个饼图数据，生成一个 series-surface 配置
        for (let i = 0; i < pieData.length; i++) {
            sumValue += pieData[i].value;
            let seriesItem: any = {
                name:
                    typeof pieData[i].name === "undefined"
                        ? `series${i}`
                        : pieData[i].name,
                type: "surface",
                parametric: true,
                wireframe: {
                    show: false,
                },
                pieData: pieData[i],
                pieStatus: {
                    selected: false,
                    hovered: false,
                    k: k,
                },
                radius: "20%",
                center: ["10%", "20%"],
            };
            if (typeof pieData[i].color != "undefined") {
                let itemStyle: any = {};
                typeof pieData[i].color != "undefined"
                    ? (itemStyle.color = pieData[i].color)
                    : null;
                seriesItem.itemStyle = itemStyle;
            }
            series.push(JSON.parse(JSON.stringify(seriesItem)));
        }

        // 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
        // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation，也就是实现每一个扇形。
        for (let i = 0; i < series.length; i++) {
            endValue = startValue + series[i].pieData.value;
            series[i].pieData.startRatio = startValue / sumValue;
            series[i].pieData.endRatio = endValue / sumValue;
            series[i].parametricEquation = getParametricEquation(
                series[i].pieData.startRatio,
                series[i].pieData.endRatio,
                false,
                false,
                k,
                series[i].pieData.value
            );
            startValue = endValue;
        }
        // series.sort((a: any, b: any) => {
        //     return b.pieData.value - a.pieData.value;
        // });
        // data.sort((a: any, b: any) => {
        //     return a.value - b.value
        // });
        // let boxHeight = getHeight3D(series, 15); //通过传参设定3d饼/环的高度，26代表26px
        // 准备待返回的配置项，把准备好的 legendData、series 传入。
        let option = {
            labelLine: {
                show: true,
                lineStyle: {
                    color: "#7BC0CB",
                },
            },
            legend: {
                orient: "vertical",
                top: "center",
                right: $util.fontSize(10),
                data: data,
                icon: "rect",
                itemWidth: $util.fontSize(9), // icon宽度
                itemHeight: $util.fontSize(9), // icon高度
                formatter: (res: any) => {
                    let str = "";
                    series.forEach((ele: any) => {
                        if (res == ele.name) {
                            let bfb = (
                                (ele.pieData.endRatio - ele.pieData.startRatio) *
                                100
                            ).toFixed(2);
                            if (bfb == "NaN") {
                                str =
                                    "{e|" +
                                    ele.pieData.name +
                                    "}" +
                                    "{a|" +
                                    ele.pieData.value +
                                    "人" +
                                    0 +
                                    "%}";
                            } else {
                                str =
                                    "{e|" +
                                    ele.pieData.name +
                                    "} " +
                                    "{a| " +
                                    ele.pieData.value +
                                    "人}{b|  " +
                                    bfb +
                                    "%}";
                            }
                        }
                    });
                    return str;
                },
                textStyle: {
                    color: "#fff",
                    fontSize: $util.fontSize(16),
                    padding: [11, 6],
                    rich: {
                        e: {
                            fontSize: $util.fontSize(11),
                            color: "#ffffff",
                            fontWeight: 400,
                            fontFamily: 'HarmonyOS Sans SC',
                            width: $util.fontSize(55),
                        },
                        a: {
                            fontSize: $util.fontSize(10),
                            color: "#ffffff",
                            fontWeight: "bold",
                            fontFamily: 'HarmonyOS Sans SC',
                            width: $util.fontSize(40),
                        },
                        b: {
                            fontSize: $util.fontSize(10),
                            color: "#ffffff",
                            fontWeight: "bold",
                            fontFamily: 'HarmonyOS Sans SC',
                            width: $util.fontSize(30),
                        }
                    },
                },
            },
            label: {
                show: false,
                formatter: "",
            },
            tooltip: {
                show: true,
                formatter: (params: any) => {
                    if (
                        params.seriesName !== "mouseoutSeries" &&
                        params.seriesName !== "pie2d"
                    ) {
                        let bfb = (
                            (option.series[params.seriesIndex].pieData.endRatio -
                                option.series[params.seriesIndex].pieData.startRatio) *
                            100
                        ).toFixed(2);
                        return (
                            `${params.seriesName}<br/>` +
                            `<span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color};"></span>` +
                            `${bfb}%`
                        );
                    }
                },
            },
            xAxis3D: {
                min: -1,
                max: 1,
            },
            yAxis3D: {
                min: -1,
                max: 1,
            },
            zAxis3D: {
                min: -1,
                max: 1,
            },
            grid3D: {
                show: false,
                boxHeight: 12, //圆环的高度
                left: `-${$util.fontSize(92)}`,
                top: `${$util.fontSize(12)}`, //3d饼图的位置
                viewControl: {
                    //3d效果可以放大、旋转等，请自己去查看官方配置
                    alpha: 28, //角度
                    distance: 245, //调整视角到主体的距离，类似调整zoom
                    rotateSensitivity: 0, //设置为0无法旋转
                    zoomSensitivity: 0, //设置为0无法缩放
                    panSensitivity: 0, //设置为0无法平移
                    autoRotate: false, //自动旋转
                },
            },
            series: series,
        };
        return option
    }
    // 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
    const getParametricEquation = (
        startRatio: any,
        endRatio: any,
        isSelected: any,
        isHovered: boolean,
        k: any,
        h: any,
    ) => {
        // 计算
        let midRatio = (startRatio + endRatio) / 2;
        let startRadian = startRatio * Math.PI * 2;
        let endRadian = endRatio * Math.PI * 2;
        let midRadian = midRatio * Math.PI * 2;
        // 如果只有一个扇形，则不实现选中效果。
        if (startRatio === 0 && endRatio === 1) {
            isSelected = false;
        }
        // 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）
        k = typeof k !== "undefined" ? k : 1 / 3;
        // 计算选中效果分别在 x 轴、y 轴方向上的位移（未选中，则位移均为 0）
        let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
        let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;
        // 计算高亮效果的放大比例（未高亮，则比例为 1）
        let hoverRate = isHovered ? 1.05 : 1;
        // 返回曲面参数方程
        return {
            u: {
                min: -Math.PI,
                max: Math.PI * 3,
                step: Math.PI / 32,
            },
            v: {
                min: 0,
                max: Math.PI * 2,
                step: Math.PI / 20,
            },
            x: function (u: any, v: any) {
                if (u < startRadian) {
                    return (
                        offsetX +
                        Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
                    );
                }
                if (u > endRadian) {
                    return (
                        offsetX +
                        Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
                    );
                }
                return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
            },
            y: function (u: any, v: any) {
                if (u < startRadian) {
                    return (
                        offsetY +
                        Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
                    );
                }
                if (u > endRadian) {
                    return (
                        offsetY +
                        Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
                    );
                }
                return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate;
            },
            z: function (u: any, v: any) {
                if (u < -Math.PI * 0.5) {
                    return Math.sin(u);
                }
                if (u > Math.PI * 2.5) {
                    return Math.sin(u) * h * 0.1;
                }
                return Math.sin(v) > 0 ? 1 * h * 0.1 : -1;
            },
        };
    };
    let option = getPie3D(JSON.parse(JSON.stringify(data)), 0.8)
    //是否需要label指引线，如果要就添加一个透明的2d饼状图并调整角度使得labelLine和3d的饼状图对齐，并再次setOption
    option.series.push({
        name: "pie2d",
        type: "pie",
        labelLine: {
            show: false,
            length: 15,
            length2: 15,
        },
        startAngle: `-${$util.fontSize(25)}`, //起始角度，支持范围[0, 360]。
        clockwise: false, //饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式
        radius: [$util.fontSize(0) + "%", $util.fontSize(0) + "%"],
        center: [$util.fontSize(1.5) + "%", $util.fontSize(0) + "%"], //指示线的位置
        data: data,
        itemStyle: {
            opacity: 0,
        },
    });
    myChart.setOption(option)
}
//重新加载图表
const reloadChart = () => {
    disposeChart()
    initChart(seriesData.value)
}
const disposeChart = () => {
    if (myChart) {
        myChart.dispose();
    }
}
watch(
    () => props.chartData,
    (newValue, oldValue) => {
        seriesData.value = []
        props.chartData.forEach((item: any) => {
            if (item.id) {
                seriesData.value.push({
                    name: item.level_name,
                    value: Number(item.level_num),
                    color: item.color,
                })
            }
        })
        reloadChart()
    },
    { deep: true, immediate: true, }
)
onMounted(() => {
    window.addEventListener("resize", () => {
        setTimeout(() => {
            reloadChart()
        }, 200)
    });
})
</script>
<style lang="scss" scoped>
.RingChart {
    width: 100%;
    height: 100%;

    .chart {
        width: 100%;
        height: 100%;
    }
}
</style>
